Combo: (2) RE Audio SEX12D4 and (1) RE Audio XT-2000DEV3

Pair of 12" Dual 4 ohm Subwoofers and a 2400W Monoblock Amplifier

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Pair of 12" Dual 4 ohm SEX Series Car Subwoofers • XT V3 Series Monoblock Class DE Car Amplifier • Matched Perfectly at 1 ohm • For Sealed or Ported Boxes

Learn more about the 2-sex12d4_xt2000dev3

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This item has been discontinued

Product Highlights

Pair of 12" Dual 4 ohm SEX Series Car Subwoofers • XT V3 Series Monoblock Class DE Car Amplifier • Matched Perfectly at 1 ohm • For Sealed or Ported Boxes


RE Audio

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Powerful, Accurate Sound

Get incredible sound with this amplifier and subwoofer combo from RE Audio. This package includes two RE Audio SEX series subwoofers and a XT series amplifier. Each subwoofer has a dual 4 ohm configuration that allows the two subwoofers to be wired together at a final impedance of 1 ohm. That 1 ohm impedance is perfect for the XT amplifier. Both the subwoofers handling 600 watts RMS, which combine to perfectly match the 1200 watts RMS output of the amplifier. The amp itself is a digital class D amplifier that produces clean power. For those looking for a powerful subwoofer combo that sounds great and plays loud, this combo is perfect!

Subwoofer Features:
  • 12" Dual 4 ohm SEX Series Car Subwoofer
  • Power Handling:
    • RMS: 1200 watts total / 600 watts each
  • Impedance: Dual 4 ohm
  • Dual composite 2-piece cone
  • Rubatek foam surround
  • FEA Optimized motor structure
  • Progressive spiders
  • Wrap around rubber gasket
  • Tork-Tite terminals
  • 3" 4-Layer voice coil
  • Triple stacked magnets
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
SEX 10" T/S Parameters:
  • Electrical Q Value (Qes): 0.46
  • Mechanical Q Value (Qms): 4.4
  • Total Speaker Q Value (Qts): 0.42
  • Free Air Resonance (Fs): 26.6 Hz
  • Equivalent Compliance (Vas): 31 liters
  • One-Way, Linear Excursion (Xmax): 18 mm
  • Efficiency (SPL 1W/1m): 83.2 dB SPL
  • Effective Piston Area (Sd): 310 cm2
  • DC Resistance (Re): 2.8 ohm
  • Nominal Impedance (Znom): Dual 4 ohm
  • Thermal Power Handling (Pe): 600 W
  • Force Factor (Bl): 17.7
Amplifier Features:
  • XT V3 Series 1-Channel Monoblock Class DE Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 500 watts x 1 chan.
    • 2 ohms: 750 watts x 1 chan.
    • 1 ohms: 1200 watts x 1 chan.
  • Dynamic (Max) power output: 2400 watts
  • High speed digital stereo amplifier
  • Elevated Efficiency Platform guarantees the abundance of power, without a heavy drain on the vehicles charging system
  • Remote bass level input for rear channels included
  • Pulse Width Modulated MOSFET power supply
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to 12 dB bass boost at 45 Hz)
  • Screw terminal barrier strip speaker connector accepts 8-18 AWG speaker wire
  • Soft start turn-on technology
  • 1 channel operation
  • 1 RCA Pair of preamp RCA outputs to daisy chain multiple amps
  • 3-Way System Protection circuitry (thermal, overload, and speaker short protection)
  • Heavy duty aluminum alloy heatsink for excellent heat dissipation
  • Convention cooling system
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Low level input sensitivity: 200mV to 8V
  • Fully adjustable butterworth low pass crossover filters
  • Variable low-pass filter (40-250 Hz, 24 dB/octave)
  • Subsonic filter (15-40 Hz, 24 dB/octave)
  • Average Efficiency:
    • 4 ohms: 86%
    • 2 ohms: 84%
    • 1 ohms: 76%
  • Signal-to-Noise Ratio: 80 dB
  • Frequency response: 20-500 Hz
  • Dimensions: 13-3/8"L x 10"W x 1-7/8"H
  • 1/0-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Also Found As: RE Audio, US Amps, XT2000DEV3, XT-2000DEV3, XT2000 DEV3, XT-2000DE.V3
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Specifications & Details

Amplifier Power Specifications
RMS Power @ 4 ohms
500 watts x 1 channel
RMS Power @ 2 ohms
750 watts x 1 channel
RMS Power @ 1 ohm
1200 watts x 1 channel
Peak Power Output
2400 watts x 1 channel
Amplifier Power Specifications
RMS Power @ 4 ohms
RMS Power @ 2 ohms
RMS Power @ 1 ohm
Peak Power Output
Amplifier Specifications
Amplifier Class
Number of Channels
1 - Mono
Total Peak Power Output
2400 watts
Total RMS Power Output
1200 watts
Maximum Input Gauge Size
1/0 AWG
Minimum Impedance Unbridged
1 ohms
Minimum Impedance Bridged
Not Bridgeable
Speaker Level Inputs
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
40 - 250 Hz
Subsonic Filter
15 - 40 Hz
Signal-to-Noise Ratio
80 dB
Bass Boost
0 - 12 dB
Remote bass/level controller
Fan Cooled
Fuse Rating
30A x 3 
CEA-2031 Compliant
Subwoofer Specifications
Number of Subs/Speakers
Subwoofer Size
Voice Coil(s)
Impedance (Per Voice Coil)
4 ohms
RMS Power Handling
600 watts
Total RMS Power Handling
1200 watts
Woofer Surround
Rubatek Foam
Woofer Composition
Dual Composite 2-Piece Cone
Minimum Sealed Box Volume
0.75 cubic feet
Maximum Sealed Box Volume
1.0 cubic feet
Minimum Ported Box Volume
1.5 cubic feet
Maximum Ported Box Volume
2.0 cubic feet
Xmax (millimeters)
18 mm
Top-Mount Depth (Mounting Depth)
Cutout Diameter
Recommended Enclosure Type
Ported / Vented
Compatible Vehicle Make and Model
Amplifier Wiring Kit
Is Amplifier Wiring Kit included?
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


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Product and How-to Videos

  • RE Audio New Product Line Overview | CES 2015
  • Car Subwoofer Size Buying Guide | What Size of Sub Should I Get?
  • How To Install an Amplifier: Car Amplifier Basics Part 2

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